Vines are used up, but are not placed when they are right-clicked on another vine.
MC-46931
Right clicking a vine on a vine eats up your vine, but does not place the block
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This ticket is invalid as it relates to a modified or 3rd party client, server, or launcher.
Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
This site is for addressing issues related to the base unmodded Minecraft; Bukkit, Forge, Optifine, or any other modded system invalidates your ticket, unless it can be shown to happen in Vanilla.
Additionally, if you have problems on large-scale modded servers, please report it to their site. It's probably not a bug in Vanilla Minecraft.